The Messenger of Allah ﷺ observed Qunut for a month in the dawn prayer after ruku' and invoked curse upon Ri'l, Dhakwan, and said that 'Usayya had disobeyed Allah and His Apostle ﷺ.
عَنْ أَنَسِ بْنِ مَالِكٍ قَنَتَ رَسُولُ اللَّهِ ﷺ شَهْرًا بَعْدَ الرُّكُوعِ فِي صَلاَةِ الصُّبْحِ يَدْعُو عَلَى رِعْلٍ وَذَكْوَانَ وَيَقُولُ عُصَيَّةُ عَصَتِ اللَّهَ وَرَسُولَهُ